Furnace.



E. G. CARTER.

FURNACE.

APPLICATION FILED DEO.10, 1909.

Patented Nov. 1, 1910.

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FURNACE.

APPLICATION FILED DEC. 10, 1909.

Patented N 0V. 1, 1910.

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Carrollton, in the :county of Greene and State of "Illinois, haveinventednew and useful improvements in Furnaces, of which the following is a specification.

This invention relates to im rovement's in steam boiler and other like urnaoes,,par. ticularlywith reference to the construction of the ash pitand the provision of -mean's for carrying oif the ashes therefrom. -the said invention consisting in "theconstruction, combination and arrangement of dc vices hereinafter described and claimed.

in the accompanying drawings l igur'e 1 is a vertical'transverse sectional'view of a steam boiler furnace provided with an ash pit and an ash conveyer 'constructedin-accord ance-with my invention. 2'is a long'itudinal sectional view of the same on the plane'indicated by the line"*22 of Fig. 1 aring for'driving the conveyer worm. Fig.- 4 is adetail sectional View of' one of the bearings for the conveyer worm shafts. Fig. 5 isa' detail elevation of one of the said bearings, the conveyer worm shaft =bein shown in cross section. Fig. 6 is a detai transverse sectional View of the'conveyer trough.

In accordance with my invention, thebottom of the ash'pit 1 is formedby downwardly converging rear front inclined plates 23 which are here shown a's-ironlates ractice may be made 0 any suitable mater al. The front inclined plate 3 extends forwardly and upwardly. in ad-. "ance of the front wall 4 of the furnace and an opening 5 is formed between the upper end of said front incl ned plate 3 and the said front wall 4, of the furnace .in

-which opening is a door 6, hin ged as' at 7 and which is adapted to open and close, the said opening 5, an when closed. rests at its free s1de on a sup rting flange B with which the front wa l 4 of the furnace'is rovided. A conveyer trough 9 connects the ower sides of the downv'vardly,converginrear and front' lates 2-3 of the bottomog' the ash pit an hence, ashes andcinders' which drop through the grated!) from; the. fire box 11 of" the furnace. will be conveyed- 'byv gravity, into the said trough. This trough is composed of semi-cylindrical sections-12 one of which is disposed in the'bottom of Specification of Letters Patent. .Applica'tionfikd. December 1Q, 1909. Serial "1110. 532,407.-

provided on their'lower sides with In or'hea s. jIn the-centerof each head 16is a truneach ash pit of the furnace, as shown be made-of any-other suitable-material are provided 'at' their ends with outstanding .radiallugs "13.provided with bolt holes 14.

'The said sections arespaced apart-,and in the said spaces between the trough sections and also atone end'of the said-trough are heads "-16 which are 'circul arin form and are '17 to register withthe lugs :13 of the trough sections and provided with bolt openings Paten'ted N ov.f1, 1910..

14-. Suitable 'bolts,;which are inserted in the said bolt openings 14 and 14 secure the trough sections and the said heads detachabl t ether so as to permit the removal an re cmg of any of-thetrough sections 19 which nion 18 i'for a cylindrical bearing a rectanguis provided with a cross section larbore' that extends from: end to end there.

of. The said bearing is connected to 'the upperside of the sald head by means' of radial arms or :webs20and thelower side of each headisyhence formed with an opening 21' 'coincidentwith the ash tro h 9 so as to enable the trough be formed partly by the lower sides of the. heads 16 and partly. by the trough sections 12. I H

Ducts 22 for conveying-lubricant to the bearings 19 are here s own.

A conveyer worm 23 operates in the trough and in the lowered portions of the several ash pits. This conveyer-worm is composed of separable sections 24 each of .which as a rectangular axle o ening the crosssectional rectangular sha section 25 extending through the axle o ening of each. shaft sections, extending into the rectangular bores of the conveyer worm section, sai

trunnions 18. The meeting ends of the shaft sections are disposed in certain-of the trim-' nions of the bearings and the shaft section at the outer end of the conveyer extendin throughthe' corresponding trunnion and havinga s ur' gear. 26 secured on its outer end. At t e ends of the trunnions 18" are caps 27 which have rectangularopeningsthrough which the shaft sections extend and are provided withsc'rews 28 which engage the said shaft sections and securethe on s.

thereto so that the caps'b engaging-t "e ends of-the bearings keep t e trunnions18;

in place therein, the

I said caps revolving with the shaft section's.

gaged by a pinion 33 on a drive shaft 34' one of the bearings of which is indicated at 35. In practice, the shaft 34 is continuously driven byreason of the gear connections between it and the shaft of the worm conveyer, the latter is driven uniformly and at a low rate of speed and acts to automatically and continuously force the ashes from the I ash pits through the trough and discharge the ashes at the discharge end of the trough, hence, keeping the ash pits clear at all times.

In Fig. 1, I show a portion of an endless conveyer 36 so disposed that the ashes discharging from the trough, fall into the pockets on the upper lid of said conveyer 36, the latter servmg to elevate the ashes to the point where they are loaded into vehicles or accumulated for ultimate disposition.

The door 5 and the chute formed on the front side of the furnace by the inclined plate '3 afl'ord access to the conveyer and enable the stoker to dispose of grate cleanings by dropping them through the door 5 and causing them to be carried off by the conveyer. 7

Having thus described the invention, what is claimed, is

1. A furnace including an ash pit, relatively inclined plates arranged in said pit,

and a trough connecting the adjacent edges of said plates to said trough being made up of a series of duplicate sections and heads interposed between the sections, said heads and sections being formed with offset projections designed to be alined when the parts are assembled, and rods passed through the alined projections of the sections and heads to secure the partsftogether.

2. A furnace including an ash pit, rela tively inclined plates arranged in said pit, a trou h connecting the adgacent edges of said p ates to said trough being made up of a series of duplicate sections and heads interposed between the sections, said heads and sections being formed with oflset projections designed to be alined when the parts are assembled, rods passed through the alined projections of the sections and heads to secure the parts together, each of said heads including a central bearing and being formed beyond the bearing with an opening corresponding in sectional area to and designed to aline with the trough opening, a trunnion rotatably mounted in each bearing, a conveyer made up. of a series of sections including a rectangular shaft, the

shaft terminals of the respective sections being seated in endwise alinement in openings formed in the trunnion, and means engaging the bearings and trunnions and ada ted for removable connection with the sha t terminals.

In testimony whereof I afiix my signature in presence of two witnesses.

EBER C. CARTER.

Witnesses:

- ROBERT L. CARTER,

J. M. SANron'n. 

